<?xml version="1.0" encoding="UTF-8"?><urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9" xmlns:news="http://www.google.com/schemas/sitemap-news/0.9" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:image="http://www.google.com/schemas/sitemap-image/1.1" xmlns:video="http://www.google.com/schemas/sitemap-video/1.1"><url><loc>https://principles.fyi/</loc></url><url><loc>https://principles.fyi/ai/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/an-image-is-a-sequence/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/drawing-by-subtracting/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/grading-a-doer/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/it-can-only-talk/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/one-space-for-both/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/sources/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/telling-it-what-to-draw/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/think-then-act/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/thinking-longer/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/tools-it-never-trained-on/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/what-a-tool-is/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/what-it-keeps/</loc></url><url><loc>https://principles.fyi/ai/agents-and-images/where-it-breaks/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/how-we-grade-them/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/prompting/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/sources/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/three-shapes/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/what-they-eat/</loc></url><url><loc>https://principles.fyi/ai/llms-in-the-wild/when-it-goes-wrong/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/fill-in-the-blank/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/meaning-in-context/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/put-it-to-work/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/sources/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/two-sentences/</loc></url><url><loc>https://principles.fyi/ai/masked-language-models/two-ways-to-read/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/bayes/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/downhill/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/evidence-adds/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/how-many-multiplies/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/sources/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/surprise/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/the-squashed-ruler/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/the-wrong-model/</loc></url><url><loc>https://principles.fyi/ai/math-beneath/what-to-expect/</loc></url><url><loc>https://principles.fyi/ai/papers/</loc></url><url><loc>https://principles.fyi/ai/papers/attention-is-all-you-need/</loc></url><url><loc>https://principles.fyi/ai/papers/deepseek-v4-1-flash/</loc></url><url><loc>https://principles.fyi/ai/papers/recurrence/</loc></url><url><loc>https://principles.fyi/ai/post-training/</loc></url><url><loc>https://principles.fyi/ai/post-training/dpo/</loc></url><url><loc>https://principles.fyi/ai/post-training/instruction-tuning/</loc></url><url><loc>https://principles.fyi/ai/post-training/likely-vs-good/</loc></url><url><loc>https://principles.fyi/ai/post-training/preferences/</loc></url><url><loc>https://principles.fyi/ai/post-training/reward-model/</loc></url><url><loc>https://principles.fyi/ai/post-training/rlhf/</loc></url><url><loc>https://principles.fyi/ai/post-training/sources/</loc></url><url><loc>https://principles.fyi/ai/post-training/test-time-compute/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/a-vocabulary-for-sound/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/align-without-a-clock/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/count-the-edits/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/learn-before-transcripts/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/listen-encode-spell/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/sound-to-symbols/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/sources/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/the-sliding-ear/</loc></url><url><loc>https://principles.fyi/ai/speech-processing/write-a-waveform/</loc></url><url><loc>https://principles.fyi/ai/transformers/</loc></url><url><loc>https://principles.fyi/ai/transformers/back-to-words/</loc></url><url><loc>https://principles.fyi/ai/transformers/feed-forward/</loc></url><url><loc>https://principles.fyi/ai/transformers/interpretability/</loc></url><url><loc>https://principles.fyi/ai/transformers/meaning-is-direction/</loc></url><url><loc>https://principles.fyi/ai/transformers/one-block/</loc></url><url><loc>https://principles.fyi/ai/transformers/recurrence/</loc></url><url><loc>https://principles.fyi/ai/transformers/scale/</loc></url><url><loc>https://principles.fyi/ai/transformers/sources/</loc></url><url><loc>https://principles.fyi/ai/transformers/stack-it/</loc></url><url><loc>https://principles.fyi/ai/transformers/the-loop/</loc></url><url><loc>https://principles.fyi/ai/transformers/training/</loc></url><url><loc>https://principles.fyi/ai/transformers/what-a-model-does/</loc></url><url><loc>https://principles.fyi/backpropagation/</loc></url><url><loc>https://principles.fyi/backpropagation/backprop-by-hand/</loc></url><url><loc>https://principles.fyi/backpropagation/derivatives-in-bulk/</loc></url><url><loc>https://principles.fyi/backpropagation/one-backward-pass/</loc></url><url><loc>https://principles.fyi/backpropagation/one-knob-at-a-time/</loc></url><url><loc>https://principles.fyi/backpropagation/slopes-multiply/</loc></url><url><loc>https://principles.fyi/backpropagation/sources/</loc></url><url><loc>https://principles.fyi/backpropagation/the-graph-remembers/</loc></url><url><loc>https://principles.fyi/backpropagation/the-steepest-way-up/</loc></url><url><loc>https://principles.fyi/calculus/</loc></url><url><loc>https://principles.fyi/calculus/add-up-the-slivers/</loc></url><url><loc>https://principles.fyi/calculus/cheat-sheet/</loc></url><url><loc>https://principles.fyi/calculus/each-undoes-the-other/</loc></url><url><loc>https://principles.fyi/calculus/one-knob-at-a-time/</loc></url><url><loc>https://principles.fyi/calculus/practice/</loc></url><url><loc>https://principles.fyi/calculus/the-rules-and-why/</loc></url><url><loc>https://principles.fyi/calculus/what-the-slope-tells-you/</loc></url><url><loc>https://principles.fyi/calculus/zoom-in-until-its-straight/</loc></url><url><loc>https://principles.fyi/game-theory/</loc></url><url><loc>https://principles.fyi/game-theory/markets/</loc></url><url><loc>https://principles.fyi/glossary/</loc></url><url><loc>https://principles.fyi/learning-from-data/</loc></url><url><loc>https://principles.fyi/learning-from-data/assume-a-shape/</loc></url><url><loc>https://principles.fyi/learning-from-data/average-your-neighbors/</loc></url><url><loc>https://principles.fyi/learning-from-data/cheat-sheet/</loc></url><url><loc>https://principles.fyi/learning-from-data/dots-with-a-hidden-rule/</loc></url><url><loc>https://principles.fyi/learning-from-data/grade-it-on-new-dots/</loc></url><url><loc>https://principles.fyi/learning-from-data/one-dataset/</loc></url><url><loc>https://principles.fyi/learning-from-data/practice/</loc></url><url><loc>https://principles.fyi/learning-from-data/read-the-question/</loc></url><url><loc>https://principles.fyi/learning-from-data/the-best-guess-is-the-average/</loc></url><url><loc>https://principles.fyi/learning-from-data/where-the-error-comes-from/</loc></url><url><loc>https://principles.fyi/linear-algebra/</loc></url><url><loc>https://principles.fyi/linear-algebra/cheat-sheet/</loc></url><url><loc>https://principles.fyi/linear-algebra/dot-products/</loc></url><url><loc>https://principles.fyi/linear-algebra/least-squares/</loc></url><url><loc>https://principles.fyi/linear-algebra/matrices/</loc></url><url><loc>https://principles.fyi/linear-algebra/practice/</loc></url><url><loc>https://principles.fyi/linear-algebra/projections/</loc></url><url><loc>https://principles.fyi/linear-algebra/systems/</loc></url><url><loc>https://principles.fyi/linear-algebra/vectors/</loc></url><url><loc>https://principles.fyi/machine-learning/</loc></url><url><loc>https://principles.fyi/machine-learning/module-3/</loc></url><url><loc>https://principles.fyi/machine-learning/module-3/formulas/</loc></url><url><loc>https://principles.fyi/machine-learning/module-4/</loc></url><url><loc>https://principles.fyi/machine-learning/module-4/formulas/</loc></url><url><loc>https://principles.fyi/math/</loc></url><url><loc>https://principles.fyi/numpy-from-first-principles/</loc></url><url><loc>https://principles.fyi/options/greeks/</loc></url><url><loc>https://principles.fyi/probability/</loc></url><url><loc>https://principles.fyi/probability/attach-a-number/</loc></url><url><loc>https://principles.fyi/probability/chance-is-a-fraction/</loc></url><url><loc>https://principles.fyi/probability/cheat-sheet/</loc></url><url><loc>https://principles.fyi/probability/practice/</loc></url><url><loc>https://principles.fyi/probability/read-the-question/</loc></url><url><loc>https://principles.fyi/probability/the-average-and-the-swing/</loc></url><url><loc>https://principles.fyi/probability/the-running-total/</loc></url><url><loc>https://principles.fyi/probability/the-usual-suspects/</loc></url><url><loc>https://principles.fyi/probability/two-at-once/</loc></url><url><loc>https://principles.fyi/pytorch-from-first-principles/</loc></url><url><loc>https://principles.fyi/widgets/architecture-lab/</loc></url><url><loc>https://principles.fyi/widgets/dataset-lab/</loc></url><url><loc>https://principles.fyi/widgets/deepseek-map/</loc></url><url><loc>https://principles.fyi/widgets/linear-lab/</loc></url><url><loc>https://principles.fyi/widgets/market-lab/</loc></url><url><loc>https://principles.fyi/widgets/mixed-practice/</loc></url><url><loc>https://principles.fyi/widgets/transformer-flow/</loc></url></urlset>